DXGK_MONITORFREQUENCYRANGESET_INTERFACE::pfnAcquireFirstFrequencyRangeInfo method

The pfnAcquireFirstFrequencyRangeInfo function returns the first frequency range descriptor in a specified monitor frequency range set object.

Syntax


NTSTATUS pfnAcquireFirstFrequencyRangeInfo(
  [in]  const D3DKMDT_HMONITORFREQUENCYRANGESET hMonitorFrequencyRangeSet,
  [out] const D3DKMDT_MONITOR_FREQUENCY_RANGE   **ppFirstMonitorFrequencyRangeInfo
);

Parameters

hMonitorFrequencyRangeSet [in]

[in] A handle to a monitor frequency range set object. The display miniport driver previously obtained this handle by calling the pfnGetMonitorFrequencyRangeSet function of the Monitor interface.

ppFirstMonitorFrequencyRangeInfo [out]

[out] A pointer to a variable that receives a pointer to a D3DKMDT_MONITOR_FREQUENCY_RANGE structure.

Return value

The pfnAcquireFirstFrequencyRangeInfo function returns one of the following values.

Return codeDescription
STATUS_SUCCESS

The function successfully returned the first frequency range descriptor.

STATUS_GRAPHICS_DATASET_IS_EMPTY

The function succeeded, but there were no frequency range descriptors in the set.

STATUS_INVALID_PARAMETER

An invalid parameter was supplied.

STATUS_INVALID_MONITOR_FREQUENCYRANGESET

The handle supplied in hMonitorFrequencyRangeSet was invalid.

 

This function might also return other error codes defined in Ntstatus.h.

Remarks

When you have finished using the D3DKMDT_MONITOR_FREQUENCY_RANGE structure, you must release the structure by calling pfnReleaseFrequencyRangeInfo.

You can obtain all the descriptors in a monitor frequency range set by calling pfnAcquireFirstFrequencyRangeInfo and then making a sequence of calls to pfnAcquireNextFrequencyRangeInfo.

Requirements

Target platform

Desktop

Version

Available in Windows Vista and later versions of the Windows operating systems.

Header

D3dkmddi.h (include D3dkmddi.h)

IRQL

PASSIVE_LEVEL

 

 

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